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Finding the Fourth Proportional to 577,274.20, 865,911.30 and 553,654.60

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Solution

The fourth proportional to 577,274.20, 865,911.30 and 553,654.60 is: 830,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,274.20 : 865,911.30 = 553,654.60 : x
  2. Step 2: Convert to fraction form
    577,274.20/865,911.30 = 553,654.60/x
  3. Step 3: Cross multiply
    577,274.20x = 865,911.30 × 553,654.60
  4. Step 4: Simplify right side
    577,274.20x = 479,415,774,436.98
  5. Step 5: Solve for x
    x = 479,415,774,436.98/577,274.20
  6. Step 6: Final answer
    x = 830,481.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.